Am.  Jour.  Pharm.  \ 
December.  1907.  / 
Correspondence. 
579 
Sulphoid  is  a  trade  name  for  a  colloidal  form  of  sulphur  prepared 
according  to  a  patented  process  in  which  precipitated  sulphur  is 
made  in  the  presence  of  a  colloidal  body  such  as  albumen,  the  mix- 
ture being  constantly  agitated  during  precipitation. 
Sulphoid  is  a  grayish  white  powder  containing  80  per  cent,  of 
sulphur  and  20  per  cent,  of  albumen.  It  is  said  to  be  insoluble  in 
alcohol,  ether,  acetone  and  similar  solvents,  but  is  said  to  be  soluble 
in  normal  saline  solution,  the  solution  being  precipitated  by  acids. 
The  substance  is  being  marketed  in  the  form  of  soap,  head  pomade 
and  ointment,  each  containing  10  per  cent,  of  sulphoid.  (Chem.  and 
Drug.,  1907,  page  576.) 
Tannothymal  is  a  combination  of  tannin-thymol-methan,  that  is 
being  recommended  as  an  antidiarrhceic.  It  occurs  as  a  whitish  gray 
to  reddish  gray,  odorless  and  nearly  tasteless  powder.  It  is  some- 
what astringent  and  is  decomposed  at  higher  temperatures.  Tanno- 
thymal is  nearly  insoluble  in  water  and  is  only  slightly  soluble  in 
ether  or  chloroform.    (Phar.  Zeitg.,  1 907,  page  690.) 
Thiodine  is  the  trade  name  for  thiosinamine  ethyl  iodide.  It 
occurs  as  white  crystals  having  a  melting  point  of  68°  C.  It  is 
readily  soluble  in  water  but  only  slightly  soluble  in  alcohol.  Thio- 
dine has  been  recommended  as  being  useful  in  syphilitic  affections 
and  in  tabes  and  may  be  given  in  doses  of  010  twice  a  day,  prefer- 
ably in  pill  form.    {Phar.  Zeitg.,  1 907,  page  429.) 
Urogosan  is  said  to  be  a  combination  of  formalin  with  gonosan 
that  has  been  found  useful  in  the  treatment  of  septic  conditions  of 
the  bladder,  especially  those  arising  from  gonorrheal  infection. 
(Phar.  Jour.,  September  14,  1907,  page  359.) 
CORRESPONDENCE. 
SYNTHETIC  CAMPHOR,   REPLY  TO  CRITICISMS. 
Professor  Henry  Kraemer, 
Dear  Sir: — In  reply  to  the  criticisms  made  by  Mr.  Frank  Tutin 
relative  to  structural  formulas  contained  in  my  paper  on  "  Synthetic 
Camphor,"  I  wish  to  state  that  these  formulas  were  employed  with 
some  misgivings,  because  of  the  large  number  that  had  been  sug- 
ested  or  advocated  during  recent  years,  and  concerning  which 
